Hydraulic jack



J. L. MALONE March 25 1924, 1,488,02U

HYDRAULIC JACK Filed Dec. 18. 1922 er. 5, E924.

Patented JOHNL. MALONE, OF WHISTLER, ALAB i-r.

, aaaacae rrca.

nxnna'onro mom Application filed December 18, 1922. Serial No. 607553;

.10 the art to which it appertains to make and use the same.

My invention relates to improvements in hydraulic jacks and has for itsobject to provide opposite sides of the jack body with outwardlyextending hook-shaped lugs which face in the opposite direction from thejack plunger which is disposed at one end of said jack body. By thisarrangement, tie rods, chains, U-bolts or other connectors may bequickly and easily engaged with the lugs to enable the jack-to be usedfor numerous purposes, for instance, for removing gears, pistons,pulleys, propellers, etc.

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, the descriptive matter beingsupplemented by the accompanying drawing. Figure 1 is a side elevationof a jack constructed in accordance with my invention, showing oneapplication'thereof for removing a gear from a shaft.

Figure 2 is an elevation looking at right angles to Fig. 1.

Figure 3 is an end elevation.-

In'the drawings above. briefly described, the numeral 1 designates anelongated jack body having a hydraulically operated plunger 2 at oneend, the hydraulic operating means for this plunger being positionedwithin the body and operated by a suitable handle 3 to which a lever maybe attached. As this operating means however is covered by prior patent,or-ma'y be of any desired form, it has not been illustrated.

Opposite sides of the body 1 are provided with outwardly extendingintegral lugs 4 which are provided with hook-shaped ends 5 facing in theopposite direction from the plunger 2. Tie rods, U-bolts, chains orother desired connecting devices may read ily be engaged with these lugsfor connecting the jack operatively with the work. In Fig. 1, I haveshown one application of the invention, in which'a pair of U-bolts 6 arehooked over the lugs 5 and engaged with a yoke 7 for removing a gear 8from a shaft 9, the plunger 2 being in contact with the end of thisshaft. It will be understood that this is only one of the manyapplications of' the invention, but it will be clear that in allinstances, the means for connecting the jack with the work, may bequickly and easily attached to or detached from the jack body, due tothe provision of the hookshaped lugs 5.

As excellent results may be obtained from the details disclosed, thesedetails are preferably followed. It is to be understood however thatwithin the scope of the invention as claimed, numerous minor changes maybe made.

I claim:

The combination with an elongated cylindrical body carrying a plunger atone end and means for forcing said plunger outwardly on the axial lineof the body; of

-flatsided uniformly shaped lugs integral

